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| Number | Title | Issue Date |
| 8185270 | Vehicle steering device A vehicle steering device (1) has a steering actuator (14) for steerable wheels (5) to be steered according to operation of a steering member (2), a transmission mechanism (18) including cables (22, 23), a connection mechani... | 05/22/2012 |
| 8165744 | Methods, program products, and systems for controlling for improper installation of vehicle sensors A method for controlling for improper installation of sensors of a vehicle is provided. The method comprises the steps of determining a first indication of direction based at least in part on a yaw value, determining a second indication of direction based at least i... | 04/24/2012 |
| 8160780 | System and method for keeping a vehicle in a lane The present invention relates, in general, to a system and method for keeping a vehicle in a lane in consideration of a steering wheel contortion angle, and more particularly, to a system for keeping a vehicle in a lane in consideration of a steering wheel contortio... | 04/17/2012 |
| 8160779 | Monitoring device for the function of an electronic control device, and method for this purpose A control system for fault detection with a control device including a processor having a control program that calculates at least one actuating value signal outputted to an actuator. At two process points in the control program, at least one control point (K) is de... | 04/17/2012 |
| 8068955 | Vehicle with a variable rear toe angle In a vehicle provided with a rear wheel toe angle varying device for individually varying toe angles of rear wheels, upon detection of a failure to steer one of the rear wheels, the rear wheel of a healthy side is steered to a zero angle. Whereby, when a straight tr... | 11/29/2011 |
| 8068954 | Steering apparatus for vehicle There is provided a steering apparatus to ease an uncomfortable feeling given to an operator when a steering wheel is connected to a steering mechanism, on a fail. The apparatus includes a unit that varies an angular ratio of a steering angle of front wheels with re... | 11/29/2011 |
| 7908057 | Power steering apparatus Provided is a power steering apparatus capable of suppressing an abrupt change in steering force and preventing a deterioration in steering feeling even in the event of a transition from power steering to manual steering. The power steering apparatus includes a torq... | 03/15/2011 |
| 7877179 | Mechanical and electrical locking coordination security strategy for an active front steer system A system as described herein relates generally to automotive active front steering control systems having a main processor and a redundant sub-processor. The system provides a way of controlling the electrical and mechanical locking of an actuator motor in a variabl... | 01/25/2011 |
| 7647150 | Vehicle attitude control device based on stability factor A vehicle attitude control device derives a stability factor during turning of a vehicle based on the behavior of the vehicle to take the derivation result as an estimated stability factor (step 112), compares the estimated stability factor with a reference s... | 01/12/2010 |
| 7526372 | Steering control device A steering control device in which a steering portion including an electric steering reaction force actuator and a steered portion including an electric steered portion actuator are mechanically disconnectable and connectable via a backup connection. Steer-by-wire c... | 04/28/2009 |
| 7424352 | Driving situation detection system A driving situation detection system capable of detecting driving situations swiftly with high reliability is obtained. The driving situation detection system includes real curve arithmetic means reference vehicle model and observer means, a differentiator unit, a m... | 09/09/2008 |
| 7406375 | Electric power steering apparatus and method for controlling the electric power steering apparatus When it is determined that the torque output from the electric motor abnormally fluctuates or the torque output from the electric motor varies between clockwise and counterclockwise turning operations of the driver's steering wheel, the steering assist control is co... | 07/29/2008 |
| 7389851 | Electric power steering apparatus An electric power steering apparatus controlling an operation of an electric motor by a control unit based on a torque signal from a torque sensor and executing a steering assist of a steering shaft via a reduction mechanism. The control unit includes a power supply... | 06/24/2008 |
| 7383111 | Steering apparatus A steering apparatus for a vehicle includes a steering angle measuring unit, a vehicle speed measuring unit, a yaw rate measuring unit, a yaw rate-based reaction force control unit for controlling a steering reaction force depending on an actual yaw rate measured by... | 06/03/2008 |
| 7376498 | Vehicle controller A vehicle controller which can realize a reduced cost and high reliability at the same time. A control target status signal outputted from a control target is inputted to a monitoring unit. The monitoring unit compares a control command value with the control target... | 05/20/2008 |
| 7366598 | Device for estimating drift amount of lateral acceleration sensor, device for correcting output of lateral acceleration sensor, and device for estimating road surface friction state An SAT estimating section estimates self-aligning torque (SAT) on the basis of a steering torque, which is detected by a steering torque detecting section, and an assist torque, which is detected by an assist torque detecting section. An SAT model value computing se... | 04/29/2008 |
| 7363131 | Re-positionable vehicle control-by-wire assembly, method, and system A vehicle control assembly and a method and system for controlling a vehicle. The assembly includes a controller. A steer-by-wire component, a brake-by-wire component, and an accelerator-by-wire component are each operably attached to the controller. A track is oper... | 04/22/2008 |
| 7363136 | Controller of electric power steering apparatus An initial abnormality analysis data is reliably retained by a controller of an electric power steering apparatus. The controller of the electric power steering apparatus is constituted by comprising abnormality detection device for detecting the abnormality of a st... | 04/22/2008 |
| 7359778 | Vehicle steering apparatus In a vehicle steering apparatus, front wheels are controlled to be turned by a computer program processing. A displacement/torque conversion section 51 converts a steering angle θ into a steering torque Td that is in relation of exponential function. A torqu... | 04/15/2008 |
| 7358690 | Motor control apparatus In a motor control apparatus in which a higher voltage is directly applied to a driving unit for a motor from a battery and a lower voltage stepped down by a switching regulator from the battery is also supplied to a control unit, the switching regulator is started ... | 04/15/2008 |
| 7353096 | Diagnosis monitoring device for yaw rate sensor A yaw rate sensor failure diagnosing device judges whether the yaw rate sensor is failure or not. In particular, when the vehicle is in the steady turn state, the failure is judged by comparing a yaw rate value from the yaw rate sensor with a yaw rate value calculat... | 04/01/2008 |
| 7349780 | Steering angular velocity computing device and method A steering angular velocity computing device detects a change in a steering angle, measures a required time from a time when the steering angle changed until a time when the steering angle next changed, and computes, after the detector has detected a change in the s... | 03/25/2008 |
| 7341125 | Electric power steering apparatus The invention provides an electric power steering apparatus which can improve a steering feeling. In the electric power steering apparatus, in the case that once the electric abnormality is generated in the hardware such as the motor, the torque sensor or the like a... | 03/11/2008 |
| 7322439 | Steering apparatus for steerable vehicle A steering apparatus for a steerable vehicle includes a steering unit, an operating unit, a backup unit, and a control unit. The backup unit selectively connects/disconnects the steering unit and the operating unit. The control unit is operable in two control modes ... | 01/29/2008 |
| 7311173 | Reaction control system for obtaining preferable steering feeling A reaction control system controls a reactive force to be applied to an operating device operated by a driver of a vehicle. The system includes a device for measuring a steering speed of steering of the operating device; a device for measuring a steering torque appl... | 12/25/2007 |
| 7301296 | Integrated control and diagnostics system An integrated control and diagnostics system for a controlled system (e.g., a motor) includes a diagnostics module and a controller coupled to the motor. To optimize operation, the diagnostics information signal is used to modify the control provided by the controll... | 11/27/2007 |
| 7302329 | Apparatus, system and method for magnetorheological clutch diagnostics An apparatus and method for monitoring and diagnosing the coil temperature of a magnetorheological (MR) clutch connected to a power steering pump of a vehicle is disclosed. The apparatus includes a processing circuit, and a storage medium, readable by the processing... | 11/27/2007 |
| 7295908 | Vehicle steering apparatus In a vehicle steering apparatus, front wheels are controlled to be turned by a computer program processing. A displacement/torque conversion section 51 converts a steering angle θ into a steering torque Td that is in relation of exponential function. A torqu... | 11/13/2007 |
| 7285927 | Control apparatus for electric motor of inverter system and control apparatus for electro mechanical brake A relay switch for selectively connecting a power supply line of an inverter to a ground line is inserted between the inverter and a power source, and a power consumption unit such as a resistor element is inserted between the relay switch and ground line. ... | 10/23/2007 |
| 7275619 | Electric power steering system An electric power steering system includes: a first rotation detection section including a first sensor section and outputting a signal corresponding to a rotation of an input shaft; a second rotation detection section including second and third sensor sections and ... | 10/02/2007 |
| 7272479 | Electrically operated power steering controller and adjusting method of driving electric current offset in this controller The invention proposes an electrically operated power steering controller for inputting a driving electric current offset value of higher accuracy and being able to make an offset correction of a driving electric current by using this driving electric current offset... | 09/18/2007 |
| 7260452 | Apparatus, method and computer program product for monitoring AC line current through the step start resistors of a high voltage power supply A circuit to monitor ac line current through resistors employed to provide a ‘step start’ in a power supply, including means to monitor the current flowing through the step start resistors, comprising a peak detector, a sample and hold circuit, an analog to digi... | 08/21/2007 |
| 7257475 | Vehicle control system A vehicle control system is provided for a vehicle that is steered by steer-by-wire, the system including a battery mounted in the vehicle, a steer-by-wire steering system that turns wheels by an electric motor that is operated by electric power supplied from the ba... | 08/14/2007 |
| 7254470 | Fault tolerant torque sensor signal processing A method for generatig a fault tolerant sensor signal for a motor control system in a vehicle steering system. The method includes receiving at least three sensor signals indicative of a sensed parameter and generating a plurality of parameter pair signals responsiv... | 08/07/2007 |
| 7246679 | Vehicle steering apparatus and method A vehicle steering apparatus includes a steering reaction actuator that produces a steering reaction force to be applied to the manual steering unit, a steering reaction force controller that outputs a steering reaction force command value to the steering reaction f... | 07/24/2007 |
| 7234563 | Steer-by-wire system and control program therefor Disclosed is a steer-by-wire system and a control program therefor which are capable of preventing a steering handle from being turned excessively. According to the steer-by-wire system and the control program, when drive electric current to a steering actuator is r... | 06/26/2007 |
| 7235947 | Synchronous motor control method and synchronous motor control system A desired q-axis current is determined based on a desired torque, and a desired d-axis current is determined based on the rotating speed of a synchronous motor when the terminal voltage of the synchronous motor coincides with a predetermined maximum permissible volt... | 06/26/2007 |
| 7236907 | Steering angle sensor assembly with pulse width modulated output signal A steering angle sensing system includes at least one steering angle sensing device for outputting an analog signal representative of a steering angle position of a steering wheel. A first processor is operably coupled to the at least one steering angle sensing devi... | 06/26/2007 |
| 7226069 | Power-assisted steering system and difference compensating method for current detector A power-assisted steering system includes: two or more current detectors that detects current flowing to two or more phases of a motor and outputs detected current values; a correcting unit that corrects the detected current values output from the current detectors ... | 06/05/2007 |
| 7215093 | Motor drive circuit and motor drive method that can positively perform a brake operation A motor drive circuit includes a first transistor. The collector of a second transistor is connected to the emitter of the first transistor in series. A motor is connected to a connection point between the first and second transistors. A first brake control circuit ... | 05/08/2007 |
